Governments on the continent are using enforced disappearances to silence political opposition but, as cases rise, only 21 of 55 states have ratified a key convention

In Botswana, South Africa and Zimbabwe torture is used to extract information, elicit confessions, punish or sometimes for sadistic reasons

Many of them end up in Chikurubi prison where the cells are cold, the blankets are filthy and the toilets are in the crowded cells